Some areas of the United States do not ever change their clock by an hour between Daylight Saving Time/ Standard Time. So if you live in the below places, you don't have to do a thing.

"Daylight Saving Time, for the U.S. and its territories, is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands and the state of Arizona (not the Navajo Indian Reservation, which does observe). Navajo Nation participates in the Daylight Saving Time policy, due to its large size and location in three states" source